RC
Robert Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Indiana
Our Model Tree links this Robert Cooper across the 1920, 1930 and 1940 US Censuses in Monroe-County, Indiana (XGBoost, ~Confirmed), with identified parents Etta & Martha — first a son (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Indiana |
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Truck Helper |
| Industry | Wholesale coffee plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | C-2 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Truck Helper |
| Township / Ward | Benton Twp |
| Est. Birth Year | ~1901 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ellsworth Cooper | Head | — | 72 | ~1868 |
| Robert Cooper | Son | — | 39 | ~1901 |
| Martha Cooper | Spouse | — | 75 | ~1865 |
Census Appearances
1920
Monroe, Indiana
Son, age 18
Monroe, Indiana · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Teacher |
| Industry | High School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Monroe, Indiana
Son, age 29
Monroe, Indiana · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Office clerk |
| Industry | Electric Light Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Monroe-County, Indiana
Son, age 39
Monroe-County, Indiana · implied b. ~1901 — 3 household members
| Surname | Cooper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Bloomington |
| 1935 Residence (County) | Monroe |
| Occupation | Truck Helper |
| Industry | Wholesale coffee plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 400 |
| Highest Grade | C-2 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Robert Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Etta Cooper (~0.92 confidence) and mother Martha Cooper (~0.92 confidence) and father Ellsworth Cooper (~0.92 confidence) and father Ellsworth Cooper (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Etta Cooper
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Martha Cooper
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
Ellsworth Cooper
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Ellsworth Cooper
b. ~1867
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Cooper
Son · 1940 · age 39 · b. ~1901 · Indiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Monroe-County, Indiana
Open full size
1940 US Federal Census — Monroe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01079-00071)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Newton Brummett | 75 | Step-father | Laborer | Texas |
| 2 | John Eldridge | 48 | Head | Laborer | Indiana |
| 3 | Jessie @ Eldridge | 50 | Wife | — | Indiana |
| 4 | Imogene Eldridge | 17 | Daughter | — | Illinois |
| 5 | Leatha Eldridge | 13 | Daughter | — | Indiana |
| 6 | Albert Skirvin | 30 | Head | Deputy Sheriff | Indiana |
| 7 | Eva @ Skirvin | 29 | Wife | — | Indiana |
| 8 | Theodore Skirvin | 0 | Son | — | Indiana |
| 9 | William H. Skirvin | 25 | Head | Truck Driver | Indiana |
| 10 | Emma @ Skirvin | 27 | Wife | — | Indiana |
| 11 | Evaline May Skirvin | 1 | Daughter | — | Indiana |
| 12 | L. P. @ White | 56 | Head | Collector | Indiana |
| 13 | Hattie White | 49 | Wife | Grocery Clerk | Missouri |
| 14 | Lotta Fay @ Sheel | 59 | Head | — | Indiana |
| 15 | James M. @ Hash | 75 | Head | Farmer | Indiana |
| 16 | Cressie Hash | 73 | Wife | — | Indiana |
| 17 | James R. @ Hash | 46 | Head | Laborer | Indiana |
| 18 | Geneva Hash | 42 | Wife | Matron | Indiana |
| 19 | Leon Hash | 17 | Son | New Worker | Indiana |
| 20 | Gilbert Hash | 16 | Son | — | Indiana |
| 21 | Glen Hash | 14 | Son | — | Indiana |
| 22 | Joseph Hash | 12 | Son | — | Indiana |
| 23 | Marilyn Hash | 9 | Daughter | — | Indiana |
| 24 | Earl E. Deckard | 34 | Head | Laborer | Indiana |
| 25 | Iris @ Deckard | 27 | Wife | — | Indiana |
| 26 | Bryan Sparks | 42 | Head | Mechanic | Indiana |
| 27 | Etta @ Sparks | 42 | Wife | — | Indiana |
| 28 | Mary Jo Sparks | 13 | Daughter | — | Indiana |
| 29 | Cleary C. Traylor | 45 | Head | Machinist | Kentucky |
| 30 | Effie @ Traylor | 44 | Wife | — | Indiana |
| 31 | John R. Casey | 41 | Head | Laborer | Indiana |
| 32 | Etta @ Casey | 37 | Wife | — | Indiana |
| 33 | Bonnie M. Casey | 19 | Daughter | Maid | Indiana |
| 34 | Leslie E. Casey | 17 | Son | New Worker | Indiana |
| 35 | Donald D. Casey | 14 | Son | — | Indiana |
| 36 | Joyce G. Casey | 12 | Daughter | — | Indiana |
| 37 | Ellsworth Cooper | 72 | Head | Grocery Clerk | Illinois |
| 38 | Martha E. @ Cooper | 75 | Wife | — | Indiana |
| 39 | Robert Cooper THIS PERSON | 39 | Son | Truck Helper | Indiana |
| 40 | Bruce Beem | 48 | Head | Cleaning & Tailoring | Indiana |
Pedigree Summary
Robert
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)